252695881 has 2 divisors, whose sum is σ = 252695882. Its totient is φ = 252695880.

The previous prime is 252695857. The next prime is 252695909. The reversal of 252695881 is 188596252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 244766025 + 7929856 = 15645^2 + 2816^2 .

It is a cyclic number.

It is not a de Polignac number, because 252695881 - 2⁹ = 252695369 is a prime.

It is a super-3 number, since 3×252695881³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (252695081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126347940 + 126347941.

It is an arithmetic number, because the mean of its divisors is an integer number (126347941).

Almost surely, 2^252695881 is an apocalyptic number.

It is an amenable number.

252695881 is a deficient number, since it is larger than the sum of its proper divisors (1).

252695881 is an equidigital number, since it uses as much as digits as its factorization.

252695881 is an evil number, because the sum of its binary digits is even.

The product of its digits is 345600, while the sum is 46.

The square root of 252695881 is about 15896.4109471289. The cubic root of 252695881 is about 632.2168321109.

The spelling of 252695881 in words is "two hundred fifty-two million, six hundred ninety-five thousand, eight hundred eighty-one".